Dating attachment for calculating-machines.



No. 709,364; Patented Sept. l6, I902.

A. C. SBHUMAN.

DATING ATTACHMENT FOR CALCULATING MACHINES.

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I A. c. SCHUMAN.

DATING ATTAGHIENTFDB CALCULATING IACHINES.

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UNITED STATES PATENT OFFICE.

ALEXANDER C. SCIIUMAN, OF LOUISVILLE, KENTUCKY, ASSIGNOR TO SPALDING COLEMAN, OF LOUISVILLE, KENTUCKY.

DATING ATTACHMENT FOR CALCULATING-MACHINES.

SPECIFICATION forming part of Letters Patent No. 709,364, dated September 16, 1902.

Applioationfiled January 30, 1902. Serial No. 91,924. (No model.)

To all whom it may concern:

Be it known that I, ALEXANDER C. SCHU- MAN, of Louisville, in the county of Jefferson and State of Kentucky, have invented certain new and useful Improvements in Dating Attachments for Calculating and Tabulating Machines; and I hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, which form part of this specification.

This invention is an improved dating attachment for calculating and tabulating machines in which the amounts are printed or recorded; and its object is to provide such machines with a simple means for printing or recording the dates of items tabulated simultaneously with the printing or recording of the amounts of such items.

The invention has particular reference to the calculating and tabulating machines for which I filed applications for patents, Serial No. 86355, December 18, 1901, and Serial No. 86,514, December 19, 1901, and in the accompanying drawings I have shown the invention as applied to the machine shown in the application Serial No. 86,514. and will explain the same as used in connection therewith, the parts similar to parts shown in my said application bearing the same reference characters as the similar parts shown and described in said application, to which I refer for a full and complete explanation-of the construction and operation of the calculatingmachine, while the parts relatingparticularly to the present invention are referred to by numerals only. I do not, however, confine my invention to use in connection with the specific calculating-machine referred to, as it may be adapted to other styles or makes of machines, and therefore I refer to the claims following the detailed description of the machine illustrated in the accompanying drawings for summaries of the features and combinations of parts constituting the present invention and for which protection is desired.

In said drawings, Figure 1 is a vertical sectional elevation through my calculating-machine with the dating attachment applied thereto. Fig. 2 is a plan of the keyboard. Fig. 3 is a detail view of the dating mechanism detached. Fig. 4 is a detail front view of parts shown in Fig. 2, showing their relation to other parts of the mechanism. Fig. 5 is a detail view of the dating type-bars.

In said drawings, B represents a vibrating lever pivoted on a shaft 13 and carrying a segment B, adapted to engage a registeringwheel A said lever being limited in its forward movement by means of keyed stops C, which engage lugs B on the lever-head. The levers are returned'to normal position by cams D on a rock-shaft (Z, operated by hand. On shaft B beside each lever B, is a plate J, carrying a rearwardly-extending arm J, from which is suspended a type-bai*J ,wl1ic11 lies against a bar L that serves as a support for said bars during the making of an impression. The impression is taken by hammers M, which are set by suitable actuating mechanism and are released on the return of the levers to normal position by means of pins 13 on the lower ends. of the levers engaging pull-rods m attached to pawls m, which lock the hammers when cocked and permit them to be thrown against the typebars by springs M These parts thus far described (and other parts shown but not hereinafter specifically referred to) are identical in construction and mode of operation with the mechanism shown in my application Serial No. 86,514, to which I refer for a full explanation thereof. Suffice it to say that when the levers B are moved to the right bars J are raised so as to bring the type corresponding with the key depressed to the printing-point and are held at such point until an impression is taken, the paper-feeding and ink-ribbon-feeding devices being similar to those described in my application aforesaid. Of course I here refer to this mechanism and operation for purpose of explanation and not as restricting my invention solely to employment therewith.

The dating ctttachment.'lhe dating mechanism is constructed as follows: On the shaft 13 at the left-hand side of the machine, preferably, are pivoted three levers l 2 3, substantially like levers B in shape and indicated in dotted lines, displaced, in Fig. 1 and vibrating similarly on shaft B These levers (see Figs. 3 and 4) have curved heads provided with stops B like levers B, and cooperating with each lever is a set of key-stops 1 2 3. (See Fig. 2.) Lever 1, which is the month lever, requires twelve stop-keys, one for each month. (See Fig. 2.) The lever 2 needs but three stop-keys 2, and lever 3 requires ten stop-keys 3. These enable the three dating-levers to be set to indicate any day in the year, as March 27, for example. These levers 1 2 3 are thrown forward by springs J similarly to those actuating levers B, and are returned to normal position by cams D on shaft d, just as levers B are returned. Beside each lever 1 2 3 on shaft B is a plate J, carrying an arm .I, to each of which are connected type-bearers, preferably bars J respectively. These plates are engaged by dogs pivoted on levers '1 2 3, respectively, so that when said levers move forward the relative plates J and the connected type-bearers will be actuated. The typebearers actuated by lever l carry the names of the twelve months. The bar connected with bar2 carries the numerals 1 2 and that connected to lever 3 carries the numerals 0 to 9, inclusive. It is evident, therefore, by depressing the proper keys in rows 1 2 3 the type corresponding to the date indicated by the depressed keys in said rows will be brought to printing position, and an impression can be taken therefrom upon the paper simultaneously with the taking of the impression from the type-bearers of the calculating -,1evers B. Each dating typebearer is provided with a coacting impressionhammer M, connected and operated as and like the other hammers M and as fully set forth in my aforesaid application, Serial No. 86,514:.

From the foregoing the operation of the invention will be evident. The operator simply depresses the proper dating-keys in rows 1 2 3 and prints the date on the paper simultaneously with and opposite the total or sum printed thereon from the numeral type-bars shifted by the calculating-levers B.

The employment of three vibrating levers having their movements limited by properlyarranged key-stops and adapted by their movementin one direction to bring to the printing-point proper type characters corresponding to the keys depressed is the principal feature of the present invention and obviously may be adapted and used in machines where other forms of registering or calculating mechanism are employed. It is, however, particularly simple and useful in connection with the calculating-machines shown in my application aforesaid.

Having thus described my invention, what I therefore claim as new, and desire to secure by Letters Patent thereon, is

1. In a dating mechanism for calculating machines, the combination of vibrating levers, means for arresting the forward movement of said levers, type-bearers operated by and from said levers bearing types respectively for months and number of days of months; means for arresting said type-bearers when in printing position until an impression is taken therefrom, means for returning the levers to normalposition, and for returning the type-bearers to normal posit-ion after the printing is effected, substantially as described.

2. In a dating mechanism for calculating and tabulating machines, the combination of three vibrating levers, sets of keyed stops for limiting the forward movement of said levers, one having twelve keys, another three, another ten; type-bearers connected to and operated by said levers respectively bearing type for the twelve months, three numerals and ten numerals, means for taking an im pression from the type and for releasing the type-bearers after the impression is taken, substantially as described.

3. In a dating mechanism for tabulating and calculating machines, the combination with the calculating, tabulating and printing mechanism thereof, of a dating mechanism comprising vibrating levers, keys controlling the movements of the same, type-bearers having type for the months and days respectively actuated by and from said levers, means for locking said bearers until an impression is taken from the type thereon, and means for taking an impression from the dating-type bearers simultaneously withimpressions from the tabulating type, substantially as described.

4. Adating mechanism comprising vibratinglevers, keys for controlling the movements of the levers, vibrating arms actuated by the forward movement of the levers, type-bearers actuated by said arms, means for locking said bearers until an impression is taken from the type thereon, and means for releasing the type-bearers after impression and means for returning the levers to normal position, substantially as described.

5. The combination with the calculating, tabulating and printing mechanism of'a calculating-machine, of a dating mechanism comprising vibrating levers, keys for controlling the forward movements of the levers, vibrating arms actuated by the forward movement of the levers, type-bearers actuated by said arms, means for locking said bearers until an impression is taken from the type thereon, and means for releasing the type-bearers after impression, substantially as described.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

ALEXANDER C. SGHUMAN.

In presence of ARTHUR E. DowELL, T. II. ALEXANDER.

IIO 

